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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KO2B callsign genealogy

Currently held by MAURER, WILLIAM M

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by KO2B's current licensee, walking backwards.

  1. AB2QHcancelled· E
    Kobayashi, MinoruMPgranted 2013-10-26cancelled 2013-11-15
  2. KC2KVVcancelled· E
    Kobayashi, MinoruNJgranted 2003-02-11cancelled 2003-02-26

Successor callsigns

Callsigns held now by people who previously held KO2B.

  1. KF7QKJcancelled· E
    Hutton, Steven WAZgranted 2011-10-14cancelled 2011-12-20

All historical holders

Every license row we've seen with the callsign KO2B, oldest first.

  • MAURER, WILLIAM M NY
    1996-07-15 → cancelled 2008-07-16
  • Hutton, Steven W AZ
    2011-08-05 → cancelled 2011-10-14
  • Kobayashi, Minoru CA
    2024-01-30 active
← Back to KO2B License history →